+18 2008 Toyota Prius Check Engine Light Codes Ideas. My toyota dealer wants to charge me $58 to run another diagnostic check. Turn off your car and put the key fob in the ignition.

Read about it in our guide here. Two replaced mass air flow sensor and the check engine light is still on. Thank you,arthur #1 art1saf, jan 21, 2014 bisco cookie crumbler.